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3 years ago

I need Help plz...!!!!

Mathematics

2 answers:

Artist 52 [7]3 years ago

8 0

Answer:

Answer: Option B.

Step-by-step explanation:

Hey there!!

Let's simply solve it.

Given,

$\frac{1}{2} x + \frac{1}{4} x = 16$

Now, take LCM.

$\frac{2x + x}{4} = 16$

Multiply 16 by 4.

$3x = 16 \times 4$

or, 3x = 64.

Divide 64 by 3.

$x = \frac{64}{3}$

x= 21.33

Therefore, your answer is option B.

Hope it helps...

kirill [66]3 years ago

6 0

Answer:

B.21.3 is the correct answer

Step-by-step explanation:

1/2*x+1/4*x=16

x/2+x/4=16

2x+x/4=16

3x/4=16

3x=16*4

3x=64

x=21.3

Hope it is helpful for you

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Find the measure of BE step by step

Zigmanuir [339]

Answer:

BE = 49

Step-by-step explanation:

In triangle BDC

65^2=56^2+BD^2

65^2-56^2=BD^2

4225-3136=BD^2

1089=BD^2

33=BD

In triangle FDE

65^2=63^2+DE^2

4225-3969=DE^2

256 = DE^2

16=DE

since ED+DB=BE

THEREFORE

16+33=BE

49=BE

6 0

3 years ago

A child grew 3 1/4 inches one year and 4 3/4 inches the next year. How many inches did the child grow over the two years?

Marianna [84]

let's firstly convert the mixed fractions to improper fractions, and then use the LCD, which in this case is 4, to sum them up.

$\bf \stackrel{mixed}{3\frac{1}{4}}\implies \cfrac{3\cdot 4+1}{4}\implies \stackrel{improper}{\cfrac{13}{4}}~\hfill \stackrel{mixed}{4\frac{3}{4}}\implies \cfrac{4\cdot 4+3}{4}\implies \stackrel{improper}{\cfrac{19}{4}} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \cfrac{13}{4}+\cfrac{19}{4}\implies \stackrel{\textit{using the LCD of 4}}{\cfrac{13+19}{4}}\implies \cfrac{32}{4}\implies 8$